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Questions tagged [proxmox]

Proxmox Virtual Environment is an AGPL licensed and debian-based Linux distribution with a strong focus on hosting virtual machine.

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LVM2 Recovery/Repair

Proxmox was running great with my LVM2 on my NVME storage until about an hour ago. I "think" it ran out of metadata storage because of the way that Proxmox configured the pool (which I didn't know ...
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Unable to connect to Samba Share running in Linux Server from MacOS

Ladies and Gentlemen, I was hoping someone here could guide me in the right direction regarding the problem I am facing. I have literally tried all possible options in the internet forums with no ...
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How to have two different gateways on two different bridges in Proxmox VE

We have two different network interfaces eno1 and eno2 (eno3 and eno4 are not connected) and we have one bridge vmbr0 we want to add another bridge vmbr1 and we want to set two different gateways on ...
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GUI application on LXC on Proxmox

I am trying to run a GUI application on a server in LXC in Proxmox VE. When trying to start xorg with classical methods (X, xinit, startx), the error tty0 is missing: parse_vt_settings: Cannot open /...
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How can I migrate existing zfs pool to a pool with rootfs on it

I am now using proxmox, a virtualization platforms based on Debian. The disk layout is: Rootfs and boot partition in a usb key drive A zfs raidz pool as the storage But my usb key drive was broken ...
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Using hamachi to access proxmox web-GUI

I have a server with multiple network adaptors. I have installed proxmox and hamachi on that. I want to be able to access the web GUI through hamachi. I am not able to port forward or have both the ...
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19 views

pfSense, transparent proxy to VPS public IP

I'm not quite comfortable with using the correct lingo with regards to a solution I would like to reach within my building home lab and I'm not experienced enough to reach the goal even with using the ...
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1answer
363 views

LXC: Cgroups, hardware passthrough, explain in english please?

I've got sort of a niche use case (not "production", it's a lab environment for a classroom) where I am using LXC containers on a Proxmox VE machine to run GNS3 Server and KVM virtualization. To make ...
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Offsite backup software?

I have rented dedicated proxmox based server in a datacenter and I want to make offsite backups for it, because I don't want to loose any data and this server doesn't have RAID configuration. Is there ...
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Optimizing Rsync's Fuzzy Basis Selection

In rsync commands, is it possible to configure the "fuzzy-basis-destination-file-selection algorithm"? I use rsync's --fuzzy argument successfully most of the time when transferring local Proxmox ...
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OpenSuSE Leap v.42.3 Based VICIDIAL : Network Configuration issue

On Proxmox I have installed ViciBox is v.8.1.2 which built with OpenSuSE Leap v.42.3. The installation went smoothly but was unable to connect to the internet. On Proxmox I have installed most of ...
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how to create dhcp server master

i want to create a seprate dhcp server that all other servers whose proxmox has been installed on them, get static IP address by dchp server through MAC Address of virtual machines(proxmox servers)
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Proxmox bind mount creating sub-folders

I'm a bit confused. The proxmox bind mount using mp0: /test, mp=/mnt/test creates several additional subfolders (dump, images, private and snippets) to an otherwise empty folder on the host. They ...
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Ejabberd Victim of Systemd Security Enhancements?

I can't get ejabberd to start on a Ubuntu 18.01 Server that's installed inside a Proxmox linux container. During install I get this error: I read a bug report that suggests that the problem has to ...
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729 views

DRBD comes up after reboot with Connected Diskless/Diskless

After an unattented power loss, facing a major issue, every reboot the DBRB comes up with Connected Diskless/Diskless status. main problems: dump-md response: Found meta data is "unclean" ...
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1answer
969 views

16:9 aspect ratio on Windows KVM guest (specifically 1366x768)

I have a debian machine which I installed proxmox onto. I have been having trouble getting one of my guest machines (specifically a windows guest) to achieve a resolution of 1366x768. The solution in ...
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Debian \ Proxmox - VLAN over bonded NIC

What have I configured wrong? I'm trying to transmit and receive tagged VLAN packets over a bonded NIC (bond0). The following has been configured: auto lo eno1 eno2 bond0 bond0.22 bond0.44 vmbr0 ...
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603 views

Wake on LAN a laptop when the lid is closed

I have an old laptop (Asus n56v) that I turned into a home lab by installing Proxmox hypervisor, it works well and also WOL (wake on LAN) work. I need to store it lid-closed because I only manage it ...
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6k views

How to allow specific Proxmox LXC containers to mount NFS shares on the network?

This question is very similar to How to fix ”mount.nfs: access denied …“ when trying to mount a NFS share exported by a Proxmox 5 machine?. On a Proxmox LXC container I'm trying to mount a NFS share ...
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Why do I get ”mount error(1): Operation not permitted“ on ”mount.cifs“ in a LXC container on a Proxmox VE machine?

I've set up a new Debian 9 (stretch) LXC container on a machine running Proxmox VE, and installed the cifs-utils package. I quickly tested the connection to the SMB server by running smbclient //192....
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645 views

How can I extend LVM volume online

I would like to extend /dev/sda2 with the free space on /dev/sda without using a CD. fdisk -l output [root@ip126 ~]# fdisk -l Disk /dev/sda: 26.8 GB, 26843545600 bytes 64 heads, 32 sectors/track, ...
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Proxmox Guest: Network Device not linked

I've setup a new Ubuntu 18.04 virtual machine using Proxmox. On this new virtual machine I can't get a working Internet connection. The command lshw -C network shows: root@web:~# lshw -C network *-...
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Internet access from LXC containers in proxmox 5.1 on VirtualBox

I've installed a Proxmox VE 5.1 on a VirtualBox in macOS (10.12). The guess OS, Debian Strech (Proxmox is built on debian), has 2 "physical" network interfaces (configured from VirtualBox), Host-Only ...
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638 views

NFS mount on LXC container

I have been testing NFS mounts on LXC containers and they work mostly ok after you have modified App-Armour settings on the host. Problems arise when the LXC containers are moved or host-node restarts....
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470 views

Automatic startup network interface in LXC container

I have a fedora 27 LXC container inside a proxmox VE 5.1 The network config is working fine, I've added a Linux Bridge using the subnet 172.27.1.0/24 and the container is "connected" to the network. ...
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716 views

Format a raw image to XFS in Proxmox VE

I have a system with Proxmox VE 5.1 and a LXC container with Fedora 27. The container has 2 disk (raw format), the rootfs and an additional mount point, both of them are in ext4, I want to format to ...
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690 views

Reading iostat utilization with ZFS zvols

First off, I asked this question 5 days ago over on Serverfault. I hope I'm not doing a bad by bringing it over here to the Unix&Linux Stack. I have also asked this question on 3 other sites not ...
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916 views

docker socket: permission denied

I have home server with proxmox 5 installed and some services in docker containers. All was fine till yestarday. I rebooted the server and all services in all containers cannot bind socket because of ...
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1k views

pgadmin4 service won't start

I am not a sysadmin but since I can't afford paying one, I need to do the job myself ;-) I have a lxc container running on a proxmox4 box. proxmox4$ uname -a Linux dbd 4.4.98-2-pve #1 SMP PVE 4.4.98-...
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Proxmox hyper-convergence and storage redundancy

What kind of storage redundancy (data blocks at least on two different physical machines) does Proxmox Hyper-Convergence provide? Nutanix does it with a controller VM (CVM), VxRail with VMware vSAN ...
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586 views

“VFS: Can't find ext4 filesystem” on ZFS disk

I am getting many of these messages on one of my systems: [ 348.515157] EXT4-fs (vda9): VFS: Can't find ext4 filesystem [ 348.517587] EXT4-fs (vda9): VFS: Can't find ext4 filesystem [ 348.519944] ...
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2k views

High IO on KVM/LXC host will hang server but not on guest (Proxmox/Debian)

I have problem for past several months which was progressively getting worse and now I'm in state that if I try to do almost any intensive IO operation on my visualization host (Proxmox ve 5.1-41) ...
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832 views

Proxmox VE doesn't want to login using WUI interface

I have access to the proxmox VE server with SSH. But the WUI refuses to login (usingLinux PAM standard authentication realm). It doesn't show any error but just the infinite loading state. What step ...
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1answer
847 views

Unable to start NFS server on Alpine Linux LXC

I'm trying to setup a NFS server on an Alpine Linux LXC running on Proxmox by following the instructions as outlined here, but rpc.statd refuses to start. Here's an excerpt from /var/log/messages ...
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2answers
12k views

How to fix ”mount.nfs: access denied …“ when trying to mount a NFS share exported by a Proxmox 5 machine?

I'm trying to mount an NFS share from a Proxmox 5 host and having issues. I have the following two machines: 192.168.1.3 proxmox debian box (nfs-host) 192.168.1.31 ubuntu 16.04 (nfs-client) ...
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516 views

CentOs VM on Proxmox hangs when rebooting

I installed a VM under Proxmox 5.0.5 running CentOS 7 (Kernel 3.10.0-514.26.1.el7.x86_64). The virtual machine boots fine, but when performing a reboot (just the command 'reboot' from SSH), it never ...
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409 views

Public IPv6s fail on KVM bridge with “No buffer space available”

I've already asked this question on the #networking and #freebsd IRC channels on Freenode but nobody was able to answer my question and forwarded me over here as it seems this issue is kicky to solve. ...
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Mounting mergerfs directory with bind mount under lxc shows nothing unless root or 555 permissions

So I'm using proxmox and have a few hard drives mounted to /mnt/hdd1, /mnt/hdd2 etc I use mergerfs so that they all show up as one drive. I then use a bind mount so that I can access the dir when in ...
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1answer
468 views

LVM Volume Group MetaData Corruption - Please Help

I have a server that was set up using LVM. It ran for years just fine with out issue until about 10 days ago. When I tried to log into it, the server had crashed. When we look at the server using a ...
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1answer
962 views

Recover VM Images from dead ceph cluster

A few days ago our Ceph Cluster died - nobody knows why, but it seems that the monitors just got deleted. When trying to re-add them to the ceph.conf we get timeouts when starting ceph and these ...
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500 views

Dedicate one physcial port to one virtual port in proxmox without libvirt

I simply need to dedicate 1 host physical port to 1 virtual port of guest without help of libvirt. Host has: 2 physical interfaces: eth0 and eth1 1 virtual bridge(vmbr0), that include virtual ...
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Virtual Lab on a server. What hypervisor? Proxmox, OpenStack, ESXi?

I would like to run a virtual lab to show a piece of software - imagine 10 students, each using 3 VMs (somehow students shouldn't be able to touch each other's machines). It's going to be a small ...
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2answers
5k views

KVM package on CentOS 7 like ProXmoX

I've been using ProXmoX for a while as a KVM complete environment, which is based on Debian. Now I've got a server that I need to install KVM but it has to be on CentOS 7, is there any complete ...
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4k views

'dd' raw drives to lvm is inefficient. Is there a better way?

I have a proxmox installation. I'd like to import a vmdk to a lvm and the procedure is: $ qemu-img convert -p -f vmdk "IE11 - Win7-disk1.vmdk" -O raw "IE11 - Win7-disk1.raw" and then: $ dd if="IE11 ...
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846 views

Proxmox hook for VMs

We have Proxmox installation. We want to execute a command after new VM was added. It is required for QEMU port redirection since setting redir option is not avaialble on GUI: qm set 102 -args "--...
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1k views

Configuring 2 NIC with 2 gateways

Lets say my router has a LAN (192.168.0.1/24) and a DMZ (192.168.1.1/24). My computer has 2 NICs, one for LAN and one for DMZ. How can I configure my routes so that it uses both gateways instead of a ...
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1answer
340 views

OpenVZ acl support for Samba

Setting up Samba-4.3.5 as AD domain fileserver in OpenVZ container, running in ProxMox (pve-manager/3.4-6/102d4547 running kernel: 2.6.32-39-pve). Hardware node has enabled acl support for /var/lib/vz....
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329 views

Replacement for auditd in OpenVZ

Are there any replacements for auditd to use in OpenVZ containers? ProxMox VE (pve-manager/3.4-6/102d4547 (running kernel: 2.6.32-39-pve)
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1answer
837 views

SELinux + MergerFS (fuse) not working well together

I have been trying now for several days to get my new server up and running. I am running CentOS with MergerFS to pool my drives and samba to host to my windows machines. All of this running in ...
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1answer
567 views

NFS permissions across multiple LXC VM's

I recently changed my home server setup from a basic Ubuntu Server installation running everything to a virtualised environment. I am currently running ProxMox type 1 hypervisor, with several VM's. ...